15 months ago, Robert McHugh predicted this:
[The Dow] can be expected to drop to about the start of the pattern, at a minimum, meaning into the 9,000s over the intermediate-term... It is looking increasing likely to us that world central banks will choose hyperinflation rather than nominal decline in stock indices, which will force precious metals prices to rise sharply.
In gold-price terms, McHugh's Dow prediction came true on January 22 this year. Now it's come true in nominal terms, too (9,153.22 at 13:04 ET today) (UPDATE: 8.731.87 at 15:41).
It seems McHugh is an adherent of the Elliot Wave principle. Wikipedia gives a criticism of the theory:
The premise that markets unfold in recognizable patterns contradicts the efficient market hypothesis, which says that prices cannot be predicted from market data such as moving averages and volume. By this reasoning, if successful market forecasts were possible, investors would buy (or sell) when the method predicted a price increase (or decrease), to the point that prices would rise (or fall) immediately, thus destroying the profitability and predictive power of the method. In efficient markets, knowledge of the Elliott wave principle among investors would lead to the disappearance of the very patterns they tried to anticipate, rendering the method, and all forms of technical analysis, useless.
I think one could riposte that events have demonstrated that the efficient market does not exist.